The measure of more than three times the measure of the sum of the measures of the two angles
is 1990, find the measure of each angle.

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers

ok then what happened.

47 - 90 = 43

43 - 180 = x

x = 137